Short Perspective on Membrane Integration in Microalgae Bioreactor for CO₂ Capture

DOI

10.2991/978-94-6463-180-7_36How to use a DOI?

Keywords

CO2 capture; Global warming; Membrane; Microalgae; Photo-bioreactor

Abstract

The global warming issue has reached an alarming level due to the continuous increase of CO2 and other greenhouse gas emissions. They are released into the atmosphere due to anthropogenic activities and contributions from many industries that employ coal, fuel oil, and natural gas. To achieve environmentally friendly and sustainable conditions, CO2 capture is important. This article starts by discussing the comparison of several methods in CO2 capture, continues with the performance of CO2 capture in microalgae bioreactor (photo-bioreactor), and closed with the prospect of membrane integration in photo-bioreactor. There are physical, chemical, and biological methods for capturing CO2. Physical method leads to expensive processes and chemical method leads to producing chemical waste. Biological method using microalgae is considered attractive and several factors affected the capture process, i.e. temperature, pH, light intensity, microalgae strain, types of bioreactor, CO2 and toxic substances concentration (SO2 and NOx), and illumination cycle. This article discloses that airlift and flat panel photo-bioreactors are promising for CO2 capture because of their high volumetric productivity, high photosynthetic efficiency, high gas transfer, and uniform mixing. Furthermore, membrane integration in photo-bioreactors increases the capture efficiency as it can produce fine bubbles for better CO2 mass transfer into the medium. Therefore, microalgae cultivation combine with membrane process has a potential prospect for environmental remediation while producing valuable products from microalgae.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Soen Steven
PY  - 2023
DA  - 2023/07/27
TI  - Short Perspective on Membrane Integration in Microalgae Bioreactor for CO₂ Capture
BT  - Proceedings of the International Conference of Tropical Studies and its Applications (ICTROPS 2022)
PB  - Atlantis Press
SP  - 335
EP  - 350
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-180-7_36
DO  - 10.2991/978-94-6463-180-7_36
ID  - Steven2023
ER  -